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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Seibert Threshold Days by Year (USC00057519)

16 fixed thresholds counted per year at Seibert (USC00057519): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Seibert Thresholds

  • Seibert: days with 10 mm (0.39 in) or more of precipitation in 18 years, most in 2009 with 24.
  • Seibert: days with 25 mm (0.98 in) or more of precipitation in 16 years, most in 2008 with 8.
  • Seibert: days with 50 mm (1.97 in) or more of precipitation in 12 years, most in 2017 with 3.
  • Seibert: days with 10 cm (3.9 in) or more of snowfall in 11 years, most in 2014 with 4.
  • 16 fixed thresholds have at least one qualifying day at Seibert.
10 years with a qualifying day
Days at or above 30 C (86 F) per year at Seibert Days per year at Seibert with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 87 in 2007. 02550751002005: 802007: 872008: 602009: 462010: 742013: 732014: 522015: 852017: 552018: 642005200720082009201020132014201520172018
Days per year at Seibert with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 87 in 2007.
Days at or above 30 C (86 F) per year at Seibert
YearDaysDecade average
20058068.3
20078768.3
20086068.3
20094668.3
20107467.2
20137367.2
20145267.2
20158567.2
20175567.2
20186467.2
First to last qualifying date each year at Seibert For each year, a bar from the first to the last day at Seibert meeting 30 C (86 F). 2005: 20 May 2005 to 4 October 20052007: 14 May 2007 to 8 October 20072008: 1 May 2008 to 27 September 20082009: 19 May 2009 to 7 September 20092010: 23 May 2010 to 29 September 20102013: 13 May 2013 to 23 September 20132014: 3 May 2014 to 20 September 20142015: 2 June 2015 to 10 October 20152017: 8 June 2017 to 22 September 20172018: 24 May 2018 to 2 October 201820052008201020142017JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Seibert meeting 30 C (86 F).
First to last qualifying date each year at Seibert
YearFirst dateLast date
20052005-05-202005-10-04
20072007-05-142007-10-08
20082008-05-012008-09-27
20092009-05-192009-09-07
20102010-05-232010-09-29
20132013-05-132013-09-23
20142014-05-032014-09-20
20152015-06-022015-10-10
20172017-06-082017-09-22
20182018-05-242018-10-02

Every Fixed Threshold

Fixed thresholds at Seibert
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days1087200764
35 C (95 F): Days102720075
40 C (104 F): Days1120051
90 F (32.2 C): Days1057200740
100 F (37.8 C): Days5820052
0 C (32 F): Ice days (max1050200714
0 C (32 F): Frost days (min61922013171
-10 C (14 F): Days with min664201344
-20 C (-4 F): Days with min61320143
20 C (68 F): Tropical nights (min1120051
10 mm (0.39 in): Days with 10 mm or more rain182420098
25 mm (0.98 in): Days with 25 mm or more rain16820081
50 mm (1.97 in): Days with 50 mm or more rain12320171
100 mm (3.94 in): Days with 100 mm or more rain1120171
10 cm (3.9 in): Days with 10 cm or more snowfall11420142
25 cm (9.8 in): Days with 25 cm or more snowfall3120091

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2005.

Download the Data

  • Data for Seibert threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).